Paper box.



No. 695,205. Patented Mar. ll, I902. C. H. GOUDNUW.

PAPER BOX.

{Application filed Dec. 20, 1901.)

(No Model.)

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CHARLES II. GOODNOIV, OF CIIICAGO, ILLINOIS, ASSIGNOR TO J. W. SEIFTON MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, AND ANDERSON, INDIANA, A CORPORATION OF INDIANA.

PAPER BOX.

SPECIFICATION forming part of Letters Patent No. 695,205, dated March 11, 1902..

Application filed December 20,1901. Serial No. 86,693. (No model.) i

To all whom, it may concern.-

Be it known that I, CHARLES H. Goonnow, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illi- 5 nois, have invented certain new and useful Improvements in Paper Boxes, of which the following is a description, reference being had to the accompanying drawings, forming part of this specification.

l My invention relates to the general class of knockdown or folding paper boxes which are formed from a single blank and in which side walls of the box are provided with end extensions adapted to bend inward across the i ends of the box and be confined between the outer end walls thereof and extensions of said end walls adapted to bend inward and downward over such side-wall extensions, said confinement of the side-wall extensions between the end walls and their extensions serving to hold the parts in box form.

It has for its object the provision of efficient means for locking the end walls down in placein the opposite ends of the box with out marring the appearance and finish of the box and Without adding to its cost, all as hereinafter more fully explained.

In the drawings, Figure l is a plan view of the blank from which my box is folded. Fig.

0 2 is a corresponding view with the outer extensions of the side walls folded over and pasted down upon said side walls. Fig. 3 is a vertical cross-section showing one end of the box with the parts in partly-folded condition. Fig. 4 is a sectional detail transverse to the section of Fig. 3, showing the parts at the end of the box at a further stage in the folding operation; and Fig. 5, a perspective view of the inside of one corner of the box,

0 showing the parts in final position.

The same letters of reference are used to indicate identical parts in the several views.

The blank of Fig. 1 from which my improved box is folded comprises a rectangular bottom A, side walls B B, end walls C C, sidewall extensions B and B, and end-wall extensions C. This general form of blank is substantially old, and in folding it into box form the side-wall extensions B B are first bent over inward upon the side walls BB and pasted to the latter, as in Fig. 2, to stiffen them and form double side walls for the box. The side walls B B are then bent up tovcrtical position, theirend extensions B 3 bent inward across the ends of the box, the end walls C C then bent upward to vertical position against the side extensions B B", as in Fig. 3, and the end-wall extensions C C then bent over the side-wall extensions B" B" and downwardlyinside the box and against the inner sides of said extensions B to confine the latter between the end walls C and their said extensions C, and thereby lock the side walls of the box and their end extensions B in place in vertical position.

It is essential that some provision be made for locking the end-wall extensions C in Vertical position against the end walls of the box in order that the box may be held in shape by the confinement of the extensions B of the side Walls between the end walls C and their extensions C, as described. A common means for this purpose has been to provide the end-wall extensions C with supplemental extensions at their outer ends adapted when the extensions C' are bent downward to vertical position against the end walls of the box to lie flat upon the bottom of the box, the frictional engagement of such supplemental extensions with the bottom of the box tending to prevent the end-wall extensions from swinging upward and releasing the side-wall extensions confined by them. This means for holding the parts in place has not been entirely satisfactory, both because of lack of its efficiency for the purpose in the absence of some supplemental means for more positively holding the end-wall extensions in place and because the provision of the supplemental extensions of the end walls 0 required a corresponding increase in the width of the stock from which the blanks were cut, with a proportionate increase in the cost of the box. Another and more ellicient means for locking the end-wall extensions in place in boxes of this character is disclosed in Letters Patent of the United States, No. 530,334, to Herman Goettsch, in

which the end-wall extensions of the box are provided with tongues adapted to engage catches upon the inner surfaces of the side walls, said catches being formed by curved slits in said side walls which perm it the stock within the arc of such curved slits to be bent inward to form catches. This arrangement while efficient for the purpose intended marred the external appearance of the box and left the notches and tongues projecting from the inner surface of the box, thereby preventing a neat finish and presenting more or less obstruction to the fitting of one box within another as box and lid.

My improvement is designed to lock the parts in place as securely as is done in the Goettsch box without marring the external appearance of the box and preserve a neat finish and smooth surface upon the interior of the box, while as compared with the other boxes referred to it saves the expense of the supplemental extensions of the end walls and locks the parts at the ends of the box in place more efliciently than is done by said supplemental extensions. To this end I provide the end-wall extensions 0' of my box with projecting tongues c c at their opposite ends and cut away the lower corners of the inner side walls B, as at b, to form recesses to receive and confine the tongues a when the endwall extension is bent over inside the end of the box and downward to vertical position, as in Fig. 5. In the present instance the tongues c c are triangular in shape and the recesses b b of corresponding shape, and the tongues snugly fit within the recesses, so as to form a smooth and substantially unbroken inner surface of the box, while the engagement of the inclined side of the tongue with the inclined wall of the recess serves to positivelylock the end-wall extensions 0 in place against the end walls of the box.

The exact shape of the tongues c o and their cooperating recesses 19 b is not material, but that which I have shown is efficient and satisfactory; nor is it absolutely essential that the box he provided with the inner side walls B and the recesses 19 be formed by cutting away the corners of said walls, since suitable abutments might otherwise be provided upon the inner surface of the side walls B in place of the abutments formed by the inclined corners of the inner side Walls B; but inasmuch as the employment of said inner side walls and the provision of the recesses b by cutting away the corners of the side walls not only facilitates the engagement of the locking-tongues c with the recesses b as said tongues are pressed downward over the inner surfaces of the side walls to looking position but produces a smooth and unbroken surface upon the interior of. the box it is highly advantageous to employ said inner side walls B both for the purposes of my invention and for the other useful purpose which they serve in boxes of this character.

Having thus fully described my invention, I claim 1. The herein-described folding box, comprising the bottom A, side walls B B having the end extensions B" and provided with the recesses 6 upon their inner surfaces adjacent the corners of the box, and the end walls 0 (1 having the extensions 0 provided with the locking-tongues c, said extensions 0 being adapted to fold over the inturned extensions 13 of the side walls and confine them between the end walls 0 and said extensions 0, and the tongues 0 being adapted to fit in the recesses I) provided for them on the inner surfaces of the side walls B and lock the endwall extensions 0 in place against the end walls of the box; substantially as described.

2. The herein-described folding box, comprising the bottom A, side walls B having the end extensions B and the side extensions B, the latter being folded over and pasted to the inner surfaces of the side walls B and having their lower corners cut away to form recesses b, and the end walls 0 having the extensions 0 provided with the locking-tongues c and adapted to be bent downward into the ends of the box to confine the side extensions B, and said locking-tongues cbeing adapted to fit in the substantially correspondingly shaped recesses b and lock the extensions 0 in place against the ends of the box; substantially as described.

3. Theherein-described paperb x comprising the bottom A to which are hinged the opposite sides B and opposite ends G, the ends 0 being provided with extensions Of having at each of their outer corners tongues c, said sides B having formed on their inner faces abutments against which the tongues c are adapted to rest when the box is folded, substantially as described.

4. The herein-described paperbox comprising the bottom A to which are hinged the opposite sides B and opposite ends 0, the sides B having extensions B adapted to fold over upon the sides B and whose free corners are cut away to form abutments, and the ends 0 having extensions 0 provided at each of their outer corners with tongues c which, when the box is folded, are adapted to rest IIO against said abutments; substantially as described.

CHARLES H. GOODNOW. Witnesses:

LoUIs B. ERWIN, EDWARD Rnoron. 

